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Increased span for wall opening

I live in a manufactured home and want to remove a portion of the center wall that is structural to open up the wall between two rooms. I want to put a beam in to span 15'. What size beam do I need to replace the existing wall?

Re: Increased span for wall opening

You'll need to consult with a local structural engineer to assess the structure, load, and necessities. Trailers are a freaky beast that you don't want to just start hacking away at. They are built with just enough support to keep them standing. You'll have to work with the design of the trailer to keep it sound and safe.

I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!